# Geologic Map of the Bodie Hills, California and Nevada

Frequently-anticipated questions:- What does this data set describe?    - How should this data set be cited?
  - What geographic area does the data set cover?
  - What does it look like?
  - Does the data set describe conditions during a particular time period?
  - What is the general form of this data set?
  - How does the data set represent geographic features?
  - How does the data set describe geographic features? 
- Who produced the data set?    - Who are the originators of the data set?
  - Who also contributed to the data set?
  - To whom should users address questions about the data? 
- Why was the data set created?
- How was the data set created?    - From what previous works were the data drawn?
  - How were the data generated, processed, and modified?
  - What similar or related data should the user be aware of? 
- How reliable are the data; what problems remain in the data set?    - How well have the observations been checked?
  - How accurate are the geographic locations?
  - How accurate are the heights or depths?
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What does this data set describe?- Title:   Geologic Map of the Bodie Hills, California and Nevada
- Abstract:    The Bodie Hills cover about 1,200 km2 straddling the California-Nevada state boundary just north of Mono Lake in the western part of the Basin and Range Province, about 20 km east of the central Sierra Nevada. The area is largely underlain by the partly overlapping, middle to late Miocene Bodie Hills volcanic field and Pliocene to late Pleistocene Aurora volcanic field. Upper Miocene sedimentary deposits, mostly basin-filling sediments, gravel deposits, and fanglomerates, lap onto the west, north, and east sides of the Bodie Hills, where they cover the older Miocene volcanic rocks. Quaternary surficial deposits, including extensive colluvial, fluvial, glacial, and lacustrine deposits locally cover all older rocks. Miocene and younger rocks are gently tilted. These rocks contain several sets of high-angle faults that change through time from conjugate sets of northeast-striking left-lateral and north-striking right-lateral oblique-slip faults in rocks older than about 9 Ma to north- and northwest-striking dip-slip faults in late Miocene rocks. The youngest faults are north-striking normal and northeast-striking left-lateral oblique-slip faults that cut Pliocene-Pleistocene rocks. Numerous hydrothermal systems were active during Miocene magmatism and formed extensive zones of hydrothermally altered rocks and several large mineral deposits, including gold- and silver-rich veins in the Bodie and Aurora mining districts      - **How should this data set be cited?** David A. John, Edward A. du Bray, Stephen E. Box, Pet, 2015, Geologic Map of the Bodie Hills, California and Nevada: Scientific Investigation Map SIM 2015-3318, U.S. Geological Survey, Menlo Park, CA.
Online Links:- <http://dx.doi.org/10.3133/sim3318>   
**What geographic area does the data set cover?**
- West_Bounding_Coordinate:   -119.256318
- East_Bounding_Coordinate:   -118.743731
- North_Bounding_Coordinate:   38.449341
- South_Bounding_Coordinate:   38.056974

**What does it look like?**

**Does the data set describe conditions during a particular time period?**
- Beginning_Date: 2007   Ending_Date: 2014
  - Currentness_Reference:   publication date
  **What is the general form of this data set?**
- Geospatial_Data_Presentation_Form:   vector digital data

**How does the data set represent geographic features?**
- **How are geographic features stored in the data set?** This is a Vector data set.It contains the following vector data types (SDTS terminology):- G-polygon (1344)  **What coordinate system is used to represent geographic features?**
- Grid_Coordinate_System_Name:   Universal Transverse Mercator
- Universal_Transverse_Mercator:    UTM_Zone_Number:
  11
Transverse_Mercator:
-    - Scale_Factor_at_Central_Meridian:   0.999600
  - Longitude_of_Central_Meridian:   -117.000000
  - Latitude_of_Projection_Origin:   0.000000
  - False_Easting:   500000.000000
  - False_Northing:   0.000000 
Planar coordinates are encoded using coordinate pairAbscissae (x-coordinates) are specified to the nearest 50.000000Ordinates (y-coordinates) are specified to the nearest 50.000000Planar coordinates are specified in meters

The horizontal datum used is D_WGS_1984.The ellipsoid used is WGS_1984.The semi-major axis of the ellipsoid used is 6378137.000000.The flattening of the ellipsoid used is 1/298.257224.

**How does the data set describe geographic features?**
- polygons   geologic map unit  (Source: Authors)
  - OBJECTID   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
ptype
- Rock Unit Label  (Source: Fitzgibbon and Wentworth (1993))   ValueDefinitionmdTailings and mine dumpsQttTravertine hot springs depositsQtfTufa depositsQalAlluviumQesEolian sand depositsQfFan depositsQlLacustrine depositsQgdGlacial depositsQpdPediment depositsQplPlaya depositsQtTalus depositsQogOlder gravel depositsQmsaTrachyandesite of Mud SpringQacaTrachyandesite of Aurora CraterQta2Trachyandesite 2Qta1Trachyandesite 1QaAndesiteQmhTrachyandesite of Mount HicksQaccTrachyandesite of Cow Camp CreekQTaiTrachyandesiteQTopbOlivine pyroxene basaltic trachyandesiteQTobOlivine basaltic trachyandesiteQTaapTrachyandesite south of Aurora PeakQThchHornblende trachydacite of Cedar HillTmrRhyolite of Martinez HillTdapTrachydacite of Aurora PeakQTbbcBasaltic debris flow deposits of Cedar HillTbchTrachybasalt of Cedar HillTpchPyroxene trachyandesite of Cedar HillTbaBasaltic trachyandesite of Beauty PeakThdHornblende trachydaciteTrspRhyolite of Spring PeakTachTrachyandesite of Cedar HillTmlpBasaltic andesite of Locomotive PointQTsnSinter depositsTsmSedimentary rocks of Martinez HillTygYounger gravel depositsTswrSedimentary rocks of the East Walker RiverTogOlder gravel depositsTfvSedimentary deposits of Fletcher ValleyTevEureka Valley TuffTjsTuff of Jacks SpringTbarRhyolite of Big AlkaliTwaTrachyandesite of Willow SpringsThsDacite of Hot Springs CanyonTdccTrachydacite of Cinnabar CanyonTppdDebris flows associated with trachydacite of Potato PeakTppTrachydacite of Potato PeakTdsdDebris flows associated with dacite of Silver HillTisdIntrusive phase of dacite of Silver HillTsdDacite of Silver HillTbaiTrachydacite intrusions of Mount BiedemanTsmbSedimentary rocks and debris flows of Mount BiedemanTambTrachyandesite of Mount BiedemanTpstSedimentary rocks and tuff of ParamountTrbhRhyolite of the Bodie HillsTrbRhyolite of Bald PeakTrbcRhyolite of Bodie CreekTacTrachyandesite of Aurora CanyonTecTrachydacite of East CanyonTsbrSilicified brecciaTrsRhyolite of Rock Springs CanyonTdmTrachyandesite of Del MonteTdbcTrachydacite of Bridgeport CanyonTrdcRhyolite of Del Monte CanyonTrPyroxene rhyoliteTrebRhyolite of East Brawley PeakTraRhyolite of Aurora CreekTdiTrachydacite intrusionsTccTrachyandesite of Clark CanyonTwbiTrachyandesite intrusion of West Brawley PeakTwbaTrachyandesite of West Brawley PeakTrwiBasalt of Rancheria plugTrwaBasaltic trachyandesite of RancheriaTrcdTrachydacite of Rough CreekThaiHornblende trachyandesite intrusionsTaaiTrachyandesite intrusion of AuroraTadiDacite intrusions of AuroraTaaTrachyandesite of AuroraTalsAndesite of Lakeview SpringTamgTrachyandesite of Masonic GulchTascTrachyandesite of Sinnamon CutTamsTrachyandesite of Mud Spring CanyonTmaTrachyandesite of MasonicTmaiTrachyandesite intrusions of MasonicTaboTrachyandesite of BorealisKgdrMonzogranite of Rattlesnake GulchKgmGranodiorite of Masonic MountainKgmcMonzogranite of Murphy CreekKpmGranite of Powell MountainKqmdQuartz monzodiorite of AuroraKsmQuartz monzonite of Sinnamon MeadowKmgdQuartz monzodiorite of Masonic MountainMzmvMetavolcanic rocksJmmQuartz monzodiorite of Mormon MeadowMzsvMetasedimentary and metavolcanic rocksPzmsMetasedimentary rocks
GeoAge
- Rock Geologic Age  (Source:  <http://www.geosociety.org/science/timescale/timescl-2009.pdf> )   ValueDefinitionCretaceous66.5 to 145.5 MaCretaceous or Jurassic66.5 to 201.6 MaHolocene0 to 10 KaHolocene and (or) Pleistocene0 to 2.6 MaJurassic?99.6 to 145.5 Ma?Mesozoic66.5 to 251 MaMiocene5.3- 23 MaPaleozoic251 to 542 MaPleistocene.001 to 2.6 MaPleistocene and (or) Pliocene.01 to 5.3 MaPliocene2.6 to 5.3 MaPliocene and (or) Miocene2.6 to 23 Ma
Group
- Rock Group  (Source: Authors)   ValueDefinitionSurficial DepositsAssorted Quaternary sedimentary deposits divided by age and processesRocks of the Aurora Volcanic FieldQuaternary-to Miocene-aged post subduction volcanic rocks associated with the Aurora Volcanic suit.Sedimentary DepositsSedimentary deposits of Pleistocene to Miocene age intercalated with volcanic units.Distally-sourced ash-flow tuffsVolcanic tuff derived from outside the Bodie Hills regionRocks of the Bodie Hills volcanic field.Miocene-aged volcanic field is a continental margin arc sequencePre-Bodie Hills Volcanic fieldMiocene-aged volcanic rocks of Pre Bodie Hills agesBasement RocksPlutonic and metamorphic rocks ranging in age from Cretaceous to Paleozoic
Shape_Length
- Length of feature in internal units.  (Source: ESRI)   *Positive real numbers that are automatically generated.*
Shape_Area
- Area of feature in internal units squared.  (Source: ESRI)   *Positive real numbers that are automatically generated.*

Arcs
- geologic map unit  (Source: Authors) - OBJECTID   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
ltype
- Line type  (Source: Authors)   ValueDefinitioncontactBoundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact may or may not have been observed, but the location is constrained to be within about 2 mm at map scale (1:50,000) or within about 100 meters on the ground.faultStructural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy.fault, approximately locatedStructural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:50,000) or within about 100 meters on the ground.fault, concealedA planar surface of rupture along which geologic units have been fractured and then displacedfault, inferredStructural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:50,0000) or within about 250 meters on the ground. The existence of the fault is inferred from structural and stratigraphic relationships observed elsewhere.fault, questionableStructural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, and its existence is questionablelandslide scarpHead or main scarp of landslide

Labels
- geologic map unit  (Source: Authors) - OBJECTID   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
ptype
- Rock Unit Label  (Source: Fitzgibbon and Wentworth (1993))   ValueDefinitionmdTailings and mine dumpsQttTravertine hot springs depositsQtfTufa depositsQalAlluviumQesEolian sand depositsQfFan depositsQlLacustrine depositsQgdGlacial depositsQpdPediment depositsQplPlaya depositsQtTalus depositsQogOlder gravel depositsQmsaTrachyandesite of Mud SpringQacaTrachyandesite of Aurora CraterQta2Trachyandesite 2Qta1Trachyandesite 1QaAndesiteQmhTrachyandesite of Mount HicksTaccTrachyandesite of Cow Camp CreekTaTrachyandesiteTopbOlivine pyroxene basaltic trachyandesiteTobOlivine basaltic trachyandesiteTaapTrachyandesite south of Aurora PeakThdchHornblende trachydacite of Cedar HillTmrRhyolite of Martinez HillTdapTrachydacite of Aurora PeakTbbchBasaltic debris flow deposits of Cedar HillTbchTrachybasalt of Cedar HillTpachPyroxene trachyandesite of Cedar HillTbaBasaltic trachyandesite of Beauty PeakThdHornblende trachydaciteTrspRhyolite of Spring PeakTachTrachyandesite of Cedar HillTmlpBasaltic andesite of Locomotive PointQTsnSinter depositsTsmSedimentary rocks of Martinez HillTygYounger gravel depositsTswrSedimentary rocks of the East Walker RiverTogOlder gravel depositsTfvSedimentary deposits of Fletcher ValleyTevEureka Valley TuffTjsTuff of Jacks SpringTbarRhyolite of Big AlkaliTwaTrachyandesite of Willow SpringsThsDacite of Hot Springs CanyonTdccTrachydacite of Cinnabar CanyonTppdDebris flows associated with trachydacite of Potato PeakTppTrachydacite of Potato PeakTdsdDebris flows associated with dacite of Silver HillTisdIntrusive phase of dacite of Silver HillTsdDacite of Silver HillTbaiTrachydacite intrusions of Mount BiedemanTsmbSedimentary rocks and debris flows of Mount BiedemanTambTrachyandesite of Mount BiedemanTsptSedimentary rocks and tuff of ParamountTrbhRhyolite of the Bodie HillsTrbRhyolite of Bald PeakTrbcRhyolite of Bodie CreekTacTrachyandesite of Aurora CanyonTecTrachydacite of East CanyonTsbrSilicified brecciaTrsRhyolite of Rock Springs CanyonTdmTrachyandesite of Del MonteTdbcTrachydacite of Bridgeport CanyonTrdcRhyolite of Del Monte CanyonTrPyroxene rhyoliteTrebRhyolite of East Brawley PeakTraRhyolite of Aurora CreekTdiTrachydacite intrusionsTccTrachyandesite of Clark CanyonTwbiTrachyandesite intrusion of West Brawley PeakTwbaTrachyandesite of West Brawley PeakTrwaiBasalt of Rancheria plugTrwaBasaltic trachyandesite of RancheriaTrcdTrachydacite of Rough CreekThaiHornblende trachyandesite intrusionsTaaiTrachyandesite intrusion of AuroraTadiDacite intrusions of AuroraTaaTrachyandesite of AuroraTalsAndesite of Lakeview SpringTamgTrachyandesite of Masonic GulchTascTrachyandesite of Sinnamon CutTamsTrachyandesite of Mud Spring CanyonTmaTrachyandesite of MasonicTmaiTrachyandesite intrusions of MasonicTaboTrachyandesite of BorealisKgdrMonzogranite of Rattlesnake GulchKgmGranodiorite of Masonic MountainKgmcMonzogranite of Murphy CreekKpmGranite of Powell MountainKqmdQuartz monzodiorite of AuroraKsmQuartz monzonite of Sinnamon MeadowKmgdQuartz monzodiorite of Masonic MountainMzmvMetavolcanic rocksJmmQuartz monzodiorite of Mormon MeadowMzsvMetasedimentary and metavolcanic rocksPzmsMetasedimentary rocks
GeoAge
- Rock Geologic Age  (Source:  <http://www.geosociety.org/science/timescale/timescl-2009.pdf> )   ValueDefinitionCretaceous66.5 to 145.5 MaCretaceous or Jurassic66.5 to 201.6 MaHolocene0 to 10 KaHolocene and (or) Pleistocene0 to 2.6 MaJurassic?99.6 to 145.5 Ma?Mesozoic66.5 to 251 MaMiocene5.3- 23 MaPaleozoic251 to 542 MaPleistocene.001 to 2.6 MaPleistocene and (or) Pliocene.01 to 5.3 MaPliocene2.6 to 5.3 MaPliocene and (or) Miocene2.6 to 23 Ma
Group
- Rock Group  (Source: Authors)   ValueDefinitionSurficial DepositsAssorted Quaternary sedimentary deposits divided by age and processesRocks of the Aurora Volcanic FieldQuaternary-to Miocene-aged post subduction volcanic rocks associated with the Aurora Volcanic suit.Sedimentary DepositsSedimentary deposits of Pleistocene to Miocene age intercalated with volcanic units.Distally-sourced ash-flow tuffsVolcanic tuff derived from outside the Bodie Hills regionRocks of the Bodie Hills volcanic field.Miocene-aged volcanic field is a continental margin arc sequencePre-Bodie Hills Volcanic rocksMiocene-aged volcanic rocks of Pre Bodie Hills agesBasement RocksPlutonic and metamorphic rocks ranging in age from Cretaceous to Paleozoic

Structures
- geologic map unit  (Source: Authors) - OBJECTID_12   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
Unit
- Rock unit measured (= ptype in polygon feature class)  (Source: Authors)   ValueDefinitionRock unit listen in item ptype of polygon feature class 
Strike
- the strike of a surface is the azimuthal direction of a hypothetical line formed by the intersection of the surface with an imaginary horizontal surface, as measured in the direction that the observer is facing the hypothetical surface (for example, an axial surface of a fold or a plane of foliation). The geologic surface may be horizontal, inclined, vertical, or overturned  (Source: FGDC Document Number FGDC-STD-013-2006)   Range of valuesMinimum:0Maximum:360
Dip
- the dip of a surface is the angle of departure of that surface downward from horizontal, as measured  (Source: FGDC Document Number FGDC-STD-013-2006)   Range of valuesMinimum:0Maximum:90
Type
- Type of structure measured  (Source: Authors)   ValueDefinitionMM FoliationMetamorphic Foliation: Aligned layers of minerals characteristic of some metamorphic rocksbeddingSedimentary layers in a rock. The beds are distinguished from each othercompaction foliationfoliation in tuff due to weight of overlying materialvertical compaction foliationfoliation in tuff due to weight of overlying materialdikeA sheet-like or tabular-shaped igneous intrusion that cuts across the sedimentary layering, metamorphic foliation, or other texture of a pre-existing rockvertical dikeA sheet-like or tabular-shaped igneous intrusion that cuts across the sedimentary layering, metamorphic foliation, or other texture of a pre-existing rock.flow bandingmineral or textural layering in volcanic rocks due to rheological flowvertical flow bandingmineral or textural layering in volcanic rocks due to rheological flow
Descriptio
- Field description of unit being measured  (Source: Authors)   *descriptive text derived from field notes*

Vents
- geologic map unit  (Source: Authors) - OBJECTID_1   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
Name
- Name of geographic feature  (Source: Authors)   
landslides
- geologic map unit  (Source: Authors) - OBJECTID   Internal feature number.  (Source: ESRI)
  *Sequential unique whole numbers that are automatically generated.*
SHAPE
- Feature geometry.  (Source: ESRI)   *Coordinates defining the features.*
ptype
- Polygon type  (Source: Authors)   ValueDefinitionQlsLandslide of Quaternary age
Shape_Length
- Length of feature in internal units.  (Source: ESRI)   *Positive real numbers that are automatically generated.*
Shape_Area
- Area of feature in internal units squared.  (Source: ESRI)   *Positive real numbers that are automatically generated.*

Who produced the data set?- **Who are the originators of the data set?**  (may include formal authors, digital compilers, and editors) - David A. John, Edward A. du Bray, Stephen E. Box, Peter G. Vikre, James J. Rytuba, Robert J. Fleck, and Barry C. Moring  **Who also contributed to the data set?**

**To whom should users address questions about the data?**
David A. JohnUSGSGeologistMail Stop 901Menlo Park, CA 94025USA
650.329.5424 (voice)djohn@usgs.gov- Hours_of_Service:   9 to 5

Why was the data set created?This database and accompanying plot files depict the distribution of geologic materials and structures at 1:50,000 scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide hazards, mineral potential, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the scale of this report does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the California State Geologist. Similarly, although numerous landslides are mapped, the database does not identify or delineate all landslides in the map area or their present states of activity.
How was the data set created?- **From what previous works were the data drawn?** - Chesterman and Gray (1975)  (source 1 of 6)   Chesterman, C.W., and Gray, C.H., Jr., 1975, Geology of the Bodie 15-minute quadrangle, Mono County, California: Map Sheet 21, California Division of Mines and Geology, Sacramento, CA.
- Type_of_Source_Media:   paper
- Source_Scale_Denominator:   48,000
- Source_Contribution:   Geologic framework

Dohrenwend (1981)
 (source 2 of 6)
-  Dohrenwend, J. C.,, 1981, Reconnaissance surficial geologic map of the Trench Canyon quadrangle, California and Nevada: Open-File Report OFR 81-1155, U.S. Geological Survey, Menlo Park, CA.
Online Links:- <http://ngmdb.usgs.gov/Prodesc/proddesc_11897.htm>   - Type_of_Source_Media:   paper
- Source_Scale_Denominator:   62,500
- Source_Contribution:   Quaternary faults and surficial  units

Dohrenwend (1982)
 (source 3 of 6)
-  Dohrenwend, J.C., 1982, Reconnaissance surficial geologic map of the Aurora quadrangle, California and Nevada: Miscellaneous Field Studies Map MF-1373, US Geological Survey, Menlo Park CA.
Online Links:- <http://ngmdb.usgs.gov/Prodesc/proddesc_7056.htm>   - Type_of_Source_Media:   paper
- Source_Scale_Denominator:   62,000
- Source_Contribution:   Quaternary faults and surficial  units

Dohrenwend and Brem (1982)
 (source 4 of 6)
-  Dohrenwend, J.C., and Berm, G.F, 1982, Reconnaissance surficial geologic map of the Bridgeport quadrangle, California and Nevada: Miscellaneous Field Studies Map MF-1371, US Geological Survey, Menlo Park, CA.
Online Links:- <http://ngmdb.usgs.gov/Prodesc/proddesc_7054.htm>   - Type_of_Source_Media:   paper
- Source_Scale_Denominator:   62,500
- Source_Contribution:   Quaternary faults and surficial  units

Stanford Geological Survey, 1961
 (source 5 of 6)
-  Survey, Stanford Geological , 1961, Stanford Geological Survey, 1961, Geologic map of Swauger Creek-Masonic Mountain area, Mono County,: Stanford Geologic Survey Map 1961, Stanford University, Stanford  CA.
Online Links:- <http://www-sul.stanford.edu/depts/branner/images/maps/JamesGsmith-BIG.jpg>   - Type_of_Source_Media:   paper
- Source_Scale_Denominator:   31,680
- Source_Contribution:   Geologic framework

Smailbegovic, Amer (2002)
 (source 6 of 6)
-  Smailbegovic, Amer, 2002, Structural and lithologic constraints to mineralization in Aurora, NV and Bodie, CA mining districts, observed and interpreted with aerospace geophysical data: University of Nevada, Reno Ph.D. Thesis Smailbegovic thesis, University of Nevada, Reno, NV.
- Type_of_Source_Media:   paper
- Source_Scale_Denominator:   24,000
- Source_Contribution:   Geologic framework

**How were the data generated, processed, and modified?**
- Date: 11-Apr-2014 (process 1 of 4)   Metadata imported.
  Data sources used in this process:- C:\DOCUME~1\moring\LOCALS~1\Temp\2\xml49.tmp  Date: 14-Apr-2014 (process 2 of 4)
- Metadata imported. Data sources used in this process:- C:\DOCUME~1\moring\LOCALS~1\Temp\2\xmlF.tmp  Date: 14-Apr-2014 (process 3 of 4)
- Metadata imported. Data sources used in this process:- C:\DOCUME~1\moring\LOCALS~1\Temp\2\xml15.tmp  Date: 26-Jan-2015 (process 4 of 4)
- Metadata imported. Data sources used in this process:- C:\DOCUME~1\moring\LOCALS~1\Temp\2\xml7.tmp  **What similar or related data should the user be aware of?**
John, D.A., du Bray, Blakely, R.J., Box, S., 2011, Geologic Map of the Bodie Hills Volcanic Field, California and Nevada: Anatomy of Miocene Cascade Arc Magmatism in the Western Great Basin [abs.]: Eos Transactions AGU, V13C-2625, AGU.
Online Links:- <http://adsabs.harvard.edu/abs/2011AGUFM.V13C2625J>   John, D.A., du Bray, E.A., Box, S.E., Blake, 2012, Cenozoic Magmatic and Tectonic Evolution of the Ancestral Cascade Arc in the Bodie Hills, California and Nevada: Insights from Integrated Geologic Geophysical, Geochemical and Geochronologic Studies [abs.]: Eos Transactions AGU, V33B-2860, AGU.
Online Links:- <http://abstractsearch.agu.org/meetings/2012/FM/sections/V/sessions/V33B/abstracts/V33B-2860.html>   Kingdon, S., Cousens, B., John, D.A., and du, 2013, Pliocene to late Pleistocene magmatism in the Aurora Volcanic Field, Nevada and California, USA [abs.]: Eos Transactions AGU V13G-2700, AGU.
Online Links:- <http://adsabs.harvard.edu/abs/2013AGUFM.V13G2700K>   John, D.A., du Bray, E.A., Blakely, R.J., F, 2012, Miocene magmatism in the Bodie Hills volcanic field, California and Nevada: A long-lived eruptive center in the southern segment of the ancestral Cascades arc: Geosphere V. 8 n.1 p 44-97, Geological Society of America, Bolder, CO.
Online Links:- <http://geosphere.gsapubs.org/content/8/1/44.abstract>   du Bray, E.A., John, D.A., Box, S.E., Vikre, P, 2013, Petrographic and geochemical data for Cenozoic volcanic rocks of the Bodie Hills, California and Nevada: U.S. Geological Survey Data Series 764, 10 p., US Geological Survey, Denver, CO.
Online Links:- <http://pubs.usgs.gov/ds/764/>   du Bray, E.A., John, D.A., and Cousens, B.L., 2014, Petrologic, tectonic, and metallogenic evolution of the southern segment of the ancestral Cascades magmatic arc, California and Nevada: Geosphere v. 10, p. 1-39., GSA, Boulder, CO.
- Other_Citation_Details:    Online_Linkage  
  <http://geosphere.gsapubs.org/content/10/1/1.abstract>     How reliable are the data; what problems remain in the data set?- **How well have the observations been checked?** 
**How accurate are the geographic locations?**
Well-located data items are intended to have a horizontal positional accuracy within 1 mm at 1:50,000 scale, or within 50 meters on the ground.  The relative positional accuracy of each line in the database is indicated within the LTYPE field in the Arc Attribute Table (see below).  Points in the database are generally considered to be well located.  The position of each data item is derived from the USGS topographic base map, and therefore additional inaccuracies arising from inaccuracies in the base map may also be encountered.
**How accurate are the heights or depths?**

**Where are the gaps in the data?  What is missing?**
The report is intended to describe completely the surficial deposits and bedrock geology at 1:50,000 scale.  Geologic information only mappable at larger scales has been omitted.
**How consistent are the relationships among the observations, including topology?**
This data set is a network coverage containing attributed arcs, polygons, label points, location of volcanic vents, and structural data points. All polygons and arcs have been attributed, and are consistent with source information. Faults, stratigraphic contacts, and other linear features are represented as arcs. When a fault is also a stratigraphic, only a single arc is present. Dangling arcs representing faults exist but no dangled stratigraphic contacts exist.
How can someone get a copy of the data set?**Are there legal restrictions on access or use of the data?**
- Access_Constraints:   None
- Use_Constraints:    Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. This database was edited for a nominal scale of 1:50,000; higher resolution information is not present in the dataset. Plotting at scales larger than 1:50,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data.     - **Who distributes the data set?**  (Distributor 1 of 1) US Geological Survey345 Middlefiled RdMenlo Park, CA 94025USA
1 (800) ASK A Geologist (voice)**What's the catalog number I need to order this data set?**
Digital data available as downloadable files
**What legal disclaimers am I supposed to read?**
The United States Geology Survey (USGS) shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (i.e. GIF or JPG format files) are not legal documents and are not to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistently within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The USGS gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from USGS server (<http://dx.doi.org/10.3133/sim3318> ) and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on computer systems at the USGS, no warranty expressed or implied is made regarding the utility of the data on other systems for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
**How can I download or order the data?**
- Availability in digital form: Data format:ARCGSize: 1.480Network links:<http://dx.doi.org/10.3133/sim3318>
Cost to order the data:
 None
Special instructions:
down load from <http://dx.doi.org/10.3133/sim3318>

Who wrote the metadata?- Dates:   Last modified: 04-Mar-2014    Metadata author:
  -  USGSc/o Barry MoringGeologist345 Middlefield Rd, MS901Menlo Park, CA 94025USA
650.329.5360 (voice)moring@usgs.govMetadata standard: 
- FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)   Metadata extensions used:
  -      - <http://www.esri.com/metadata/esriprof80.html> 
  Generated by mp version 2.9.6 on Mon Jan 26 10:13:05 2015